Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 28 insertions, 15 deletions

diff --git a/include/linux/if_macvlan.h b/include/linux/if_macvlan.h
index 35280b302290..e28b2e4959d4 100644
--- a/include/linux/if_macvlan.h
+++ b/include/linux/if_macvlan.h
@@ -25,50 +25,63 @@ struct macvlan_port;
 struct macvtap_queue;
 
 /**
- *      struct macvlan_rx_stats - MACVLAN percpu rx stats
+ *      struct macvlan_pcpu_stats - MACVLAN percpu stats
  *      @rx_packets: number of received packets
  *      @rx_bytes: number of received bytes
  *      @rx_multicast: number of received multicast packets
+ *      @tx_packets: number of transmitted packets
+ *      @tx_bytes: number of transmitted bytes
  *      @syncp: synchronization point for 64bit counters
- *      @rx_errors: number of errors
+ *      @rx_errors: number of rx errors
+ *      @tx_dropped: number of tx dropped packets
  */
-struct macvlan_rx_stats {
+struct macvlan_pcpu_stats {
         u64                     rx_packets;
         u64                     rx_bytes;
         u64                     rx_multicast;
+        u64                     tx_packets;
+        u64                     tx_bytes;
         struct u64_stats_sync   syncp;
-        unsigned long           rx_errors;
+        u32                     rx_errors;
+        u32                     tx_dropped;
 };
 
+/*
+ * Maximum times a macvtap device can be opened. This can be used to
+ * configure the number of receive queue, e.g. for multiqueue virtio.
+ */
+#define MAX_MACVTAP_QUEUES      (NR_CPUS < 16 ? NR_CPUS : 16)
+
 struct macvlan_dev {
         struct net_device       *dev;
         struct list_head        list;
         struct hlist_node       hlist;
         struct macvlan_port     *port;
         struct net_device       *lowerdev;
-        struct macvlan_rx_stats __percpu *rx_stats;
+        struct macvlan_pcpu_stats __percpu *pcpu_stats;
         enum macvlan_mode       mode;
         int (*receive)(struct sk_buff *skb);
         int (*forward)(struct net_device *dev, struct sk_buff *skb);
-        struct macvtap_queue    *tap;
+        struct macvtap_queue    *taps[MAX_MACVTAP_QUEUES];
+        int                     numvtaps;
 };
 
 static inline void macvlan_count_rx(const struct macvlan_dev *vlan,
                                     unsigned int len, bool success,
                                     bool multicast)
 {
-        struct macvlan_rx_stats *rx_stats;
-
-        rx_stats = this_cpu_ptr(vlan->rx_stats);
         if (likely(success)) {
-                u64_stats_update_begin(&rx_stats->syncp);
-                rx_stats->rx_packets++;;
-                rx_stats->rx_bytes += len;
+                struct macvlan_pcpu_stats *pcpu_stats;
+
+                pcpu_stats = this_cpu_ptr(vlan->pcpu_stats);
+                u64_stats_update_begin(&pcpu_stats->syncp);
+                pcpu_stats->rx_packets++;
+                pcpu_stats->rx_bytes += len;
                 if (multicast)
-                        rx_stats->rx_multicast++;
-                u64_stats_update_end(&rx_stats->syncp);
+                        pcpu_stats->rx_multicast++;
+                u64_stats_update_end(&pcpu_stats->syncp);
         } else {
-                rx_stats->rx_errors++;
+                this_cpu_inc(vlan->pcpu_stats->rx_errors);
         }
 }